Crankshaft tool clamp

Abstract

The utility model discloses a crankshaft work fixture, which belongs to the technical field of fixtures, and adopts the technical scheme that the crankshaft work fixture comprises a base, a first mounting seat is detachably connected onto the base, a first clamping block is detachably connected onto the first mounting seat, a positioning groove I is formed in the first clamping block, and the positioning groove I is matched with the end part of a crankshaft; a supporting seat is arranged on the base, an adjusting screw rod is in threaded connection with the supporting seat, two guide rails are arranged on the base, a second mounting seat is arranged on the two guide rails in a sliding mode, the end of the adjusting screw rod abuts against the second mounting seat, a groove allowing the adjusting screw rod to be inserted is formed in the second mounting seat in a matched mode, and a second clamping block is detachably connected to the second mounting seat; the second clamping block is provided with a second positioning groove, the second positioning groove is matched with the end of the crankshaft, the first positioning groove and the second positioning groove are oppositely arranged, and the base is provided with a supporting base used for supporting the crankshaft. The clamp can clamp crankshafts of different specifications, and the application range is wider.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fixture, especially relates to a crankshaft tool fixture. BACKGROUND

[0002] Crankshaft is a key component in engine, after installing connecting rod, crankshaft can accept the up and down (reciprocating) movement of connecting rod and convert into cycle (rotary) movement, it is the power source of engine, and is the source power of whole mechanical system.

[0003] In the processing of crankshaft, the main role of fixture is to fix crankshaft, ensure that crankshaft does not displace or sway during processing.

[0004] The Chinese patent with the publication number CN211072686U discloses a crankshaft drill inclined oil hole fixture, which comprises a base, a front end shaft clamping plate and a rear end shaft clamping plate, the top of the base is downwardly provided with a sliding groove, the inner wall of the sliding groove is slidably connected with the front end shaft clamping plate seat, the front wall and the rear wall of the base are both inwardly and horizontally provided with a through groove, the through groove penetrates the front and rear walls of the sliding groove, the front and rear walls of the front end shaft clamping plate seat are both inwardly provided with a threaded hole, the threaded hole is threadedly connected with a bolt, the top of the front end shaft clamping plate seat is fixedly provided with the front end shaft clamping plate, the inner cavity of the front end shaft clamping plate is clamped with a first bearing seat, the top of the base is screw-connected with the rear end shaft clamping plate, the inner cavity of the rear end shaft clamping plate is clamped with a second bearing seat, the left side wall of the rear end shaft clamping plate is penetrated and clamped with a bearing, the inner ring of the bearing is clamped with a rotating shaft, the left end of the rotating shaft is fixedly connected with a handle, and the right end of the rotating shaft is fixedly connected with the inner ring of the second bearing seat and the inner ring of the second bearing seat.

[0005] The above technical scheme has the following defects: when the fixture is used, the front end shaft of the crankshaft needs to be inserted into the first bearing seat, the rear end shaft of the crankshaft needs to be inserted into the second bearing seat, the front end shaft clamping plate seat needs to be pushed towards the rear end shaft clamping plate through the sliding groove, after the front end shaft and the rear end shaft of the crankshaft are in close contact with the inner right wall of the first bearing seat and the inner left wall of the second bearing seat respectively, the bolt needs to be tightened to lock and fix the front and rear walls of the base, so as to fix the front end shaft clamping plate seat and keep the front end shaft clamping plate and the rear end shaft clamping plate in the clamping state of the crankshaft, but since the diameters of the first bearing seat and the second bearing seat cannot be adjusted, the crankshafts of different specifications cannot be clamped, which has certain limitations. UTILITY MODEL CONTENTS

[0006] The utility model aims at the above problems existing in the prior art, and provides a crankshaft tool fixture, and the technical problem to be solved by the utility model is how to expand the application range.

[0007] The above technical purpose of the utility model discloses can be realized through the following technical scheme: a crankshaft tool fixture, including base, the base is detachably connected with first mount on, first mount is detachably connected with first clamping block on first mount, the first clamping block is equipped with positioning groove one on, positioning groove one is adapted with the end of crankshaft, the base is equipped with support seat, support seat is screw -threaded with adjusting screw on, the base is equipped with two guide rails, two the guide rail is equipped with second mount on sliding, the end of adjusting screw and second mount abut, the second mount is adapted with recess for adjusting screw inserts on, the second mount is detachably connected with second clamping block on, second clamping block is equipped with positioning groove two on, positioning groove two is adapted with the end of crankshaft, positioning groove one and positioning groove two are oppositely arranged, the base is equipped with support base for supporting crankshaft.

[0008] In the above-mentioned crankshaft tool fixture, the first mount is provided with a mounting groove one, and the first clamping block is screw-connected in the mounting groove one; the second mount is provided with a mounting groove two, and the second clamping block is screw-connected in the mounting groove two.

[0009] In the above-mentioned crankshaft tool fixture, the support base is provided with a V-shaped groove, and the opening of the V-shaped groove faces upward.

[0010] In the above-mentioned crankshaft tool fixture, the support base is provided with a pressing assembly, and the pressing assembly is used for pressing the crankshaft on the support base.

[0011] In the above-mentioned crankshaft tool fixture, the pressing assembly comprises a support and a pressing rod, the support is slidingly arranged on the support base, the pressing rod is screw-connected on the support, and the lower end of the pressing rod can abut against the surface of the crankshaft.

[0012] In the above-mentioned crankshaft tool fixture, the end of the pressing rod is provided with an anti-abrasion block, and the anti-abrasion block is made of rubber.

[0013] In the above-mentioned crankshaft tool fixture, the base is provided with a guide rod, the bottom of the support base is provided with a guide groove for slidingly matching with the guide rod, a spring is arranged in the guide groove, and the support base matching with the guide rod can press the spring.

[0014] In the above-mentioned crankshaft tool fixture, both sides of the support base are provided with sliding grooves, and the support is provided with sliding block portions slidingly matched with the sliding grooves.

[0015] In the above-mentioned crankshaft tool fixture, the first mount is provided with a strip-shaped hole, a bolt is arranged in the strip-shaped hole, and the bolt is screw-connected with the base.

[0016] In the crankshaft tooling fixture, the bottom of the base is provided with two dovetail grooves, and the dovetail grooves are arranged along the length direction of the base.

[0017] Therefore, the utility model has the beneficial effects that compared with the prior art:

[0018] When clamping the crankshaft, first, the crankshaft is placed on the support base, then the crankshaft is moved to insert one end into the positioning groove one, then the adjusting screw is rotated to drive the second mounting seat to move along the guide rail until the other end of the crankshaft is inserted into the positioning groove two, at this time, the clamping of the crankshaft is completed, for the crankshafts of different specifications, only the first clamping block and the second clamping block need to be disassembled and replaced, so that the positioning groove one on the first clamping block and the positioning groove two on the second clamping block are adapted to the two ends of the crankshaft, the operation is simple, different specifications of crankshafts can be clamped, and the application range is wider. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structural schematic view of an embodiment;

[0020] Fig. 2 It is another angle structural schematic view of an embodiment;

[0021] Fig. 3 It is a partial sectional view of an embodiment.

[0022] Mark: 1, base; 2, first mounting seat; 3, first clamping block; 4, positioning groove one; 5, support seat; 6, adjusting screw; 7, guide rail; 8, second mounting seat; 9, groove; 10, second clamping block; 11, positioning groove two; 12, support base; 13, mounting groove one; 14, mounting groove two; 15, V-shaped groove; 16, compression assembly; 161, support; 162, compression rod; 17, wear-resistant block; 18, guide rod; 19, spring; 20, guide groove; 21, sliding groove; 22, sliding block part; 23, strip-shaped hole; 24, bolt; 25, dovetail groove. DETAILED DESCRIPTION

[0023] The following is a specific embodiment of the utility model and is further described in combination with the drawings, but the utility model is not limited to these embodiments.

[0024] A crankshaft tooling fixture, as shown in the figure, comprises a base 1, and a first mounting seat 2 is detachably connected to the base 1. Figs. 1-3 Specifically, strip-shaped holes 23 are formed on the two sides of the first mounting seat 2, the strip-shaped holes 23 are arranged along the length direction of the base 1, corresponding bolts 24 are arranged in the two strip-shaped holes 23, and the two bolts 24 are in threaded connection with the base 1.

[0025] The first mounting base 2 is stably connected with the base 1 through the bolt 24, and the connection between the first mounting base 2 and the base 1 is released by rotating and removing the bolt 24, and the first mounting base 2 is moved along the length direction of the strip-shaped hole 23 by loosening the bolt 24, so that the position of the first mounting base 2 on the base 1 is adjusted.

[0026] The first mounting base 2 is detachably connected with the first clamping block 3, in this embodiment, the first mounting base 2 is provided with a mounting groove one 13, and the first clamping block 3 is threadedly connected in the mounting groove one 13, and the first clamping block 3 is disassembled by rotating the first clamping block 3 through external force, which is simple and convenient to operate and disassemble and replace the first clamping block 3.

[0027] It should be noted that the position of the first clamping block 3 is adjusted by adjusting the position of the first mounting base 2 on the base 1 during use.

[0028] The base 1 is provided with two guide rails 7, and the two guide rails 7 are arranged along the length direction of the base 1, and the second mounting base 8 is slidably arranged on the two guide rails 7, and the stability of the second mounting base 8 is ensured by the guiding effect of the two guide rails 7.

[0029] The base 1 is provided with a support seat 5, the support seat 5 is threadedly connected with an adjusting screw 6, the end of the adjusting screw 6 abuts against the second mounting base 8, and the second mounting base 8 is provided with a groove 9 for inserting the adjusting screw 6, and it should be noted that the adjusting screw 6 is limited by the groove 9, so that the second mounting base 8 can be stably pushed along the two guide rails 7 by rotating the adjusting screw 6.

[0030] The second mounting base 8 is detachably connected with the second clamping block 10, in this embodiment, the second mounting base 8 is provided with a mounting groove two 14, and the second clamping block 10 is threadedly connected in the mounting groove two 14, and the second clamping block 10 is disassembled by rotating the second clamping block 10 through external force, which is simple and convenient to operate and disassemble and replace the second clamping block 10.

[0031] The first clamping block 3 is provided with a positioning groove one 4, the positioning groove one 4 is matched with one end of the crankshaft, the second clamping block 10 is provided with a positioning groove two 11, the positioning groove two 11 is matched with the other end of the crankshaft, and the positioning groove one 4 and the positioning groove two 11 are oppositely arranged, the two ends of the crankshaft are respectively inserted into the positioning groove one 4 and the positioning groove two 11, and the crankshaft is clamped by the cooperation of the first clamping block 3 and the second clamping block 10, and it should be further explained that different specifications of the crankshaft can be clamped by replacing the first clamping block 3 with different sizes of the positioning groove one 4 and replacing the second clamping block 10 with different sizes of the positioning groove two 11.

[0032] The base 1 is provided with a supporting base 12 for supporting the crankshaft, and the supporting base 12 is provided with a V-shaped groove 15, and the opening of the V-shaped groove 15 faces upward, and the V-shaped structure can be adapted to crankshafts of different specifications, and the application range is wider.

[0033] The supporting base 12 is provided with a pressing assembly 16, and the pressing assembly 16 is used for pressing the crankshaft on the supporting base 12, so that the stability of the crankshaft during machining can be further ensured.

[0034] In the embodiment, the pressing assembly 16 comprises a support 161 and a pressing rod 162, the support 161 is slidingly arranged on the supporting base 12, and the pressing rod 162 is threadedly connected to the support 161, and the lower end of the pressing rod 162 can abut against the surface of the crankshaft.

[0035] The end of the pressing rod 162 is provided with an anti-abrasion block 17 made of rubber, and the anti-abrasion block 17 is in contact with the crankshaft, so that the pressing rod 162 is prevented from directly contacting the crankshaft and causing abrasion to the crankshaft.

[0036] The base 1 is provided with a guide rod 18, the bottom of the supporting base 12 is provided with a guide groove 20 for slidingly cooperating with the guide rod 18, the guide groove 20 is provided with a spring 19, and the supporting base 12 cooperates with the guide rod 18 to extrude the spring 19.

[0037] By extruding the spring 19, not only can the shock be reduced, but also the position of the supporting base 12 can be adaptively adjusted to adapt to crankshafts of different specifications.

[0038] The supporting base 12 is provided with a sliding groove 21 on both sides, and the support 161 is provided with a sliding block part 22 for slidingly cooperating with the sliding groove 21, the position of the pressing rod 162 is adjusted by moving the support 161 along the sliding groove 21, so that the pressing rod 162 can be aligned with the middle position of the crankshaft.

[0039] The base 1 is provided with a dovetail groove 25 at intervals at the bottom, the dovetail groove 25 is provided along the length direction of the base 1, and the dovetail groove 25 is matched with an external dovetail block, so that the installation and positioning of the base 1 can be quickly realized.

[0040] The working principle of the utility model is as follows:

[0041] Firstly, the crankshaft is placed on the supporting base 12, then the crankshaft is moved to insert one end into the positioning groove one 4, then the adjusting screw 6 is rotated to drive the second mounting seat 8 to slide along the two guide rails 7 until the other end of the crankshaft is inserted into the positioning groove two 11, the first clamping block 3 and the second clamping block 10 are matched to clamp the crankshaft, then the support 161 is moved to align the pressing rod 162 with the middle position of the crankshaft, then the pressing rod 162 is rotated to gradually approach the end of the crankshaft until the crankshaft is pressed on the supporting base 12.

[0042] When the crankshaft is removed, the pressing rod 162 is rotated in the reverse direction to gradually move the end of the pressing rod 162 away from the crankshaft, then the adjusting screw 6 is rotated to move away from the second mounting base 8, then the second mounting base 8 is directly moved to drive the second clamping block 10 to move away from the crankshaft, until the end of the crankshaft is out of the positioning groove two 11, and finally the crankshaft is directly removed.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present application; those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A crankshaft tooling fixture comprising a base (1) characterised in that: A first mounting base (2) is detachably connected to the base (1), and a first clamping block (3) is detachably connected to the first mounting base (2). A positioning groove (4) is provided on the first clamping block (3), and the positioning groove (4) is adapted to the end of the crankshaft. A support base (5) is provided on the base (1), and an adjusting screw (6) is threadedly connected to the support base (5). Two guide rails (7) are provided on the base (1), and a second mounting base (8) is slidably arranged on the two guide rails (7). The end of the rod (6) abuts against the second mounting base (8). The second mounting base (8) is fitted with a groove (9) for inserting the adjusting screw (6). The second mounting base (8) is detachably connected to a second clamping block (10). The second clamping block (10) is provided with a positioning groove two (11). The positioning groove two (11) is adapted to the end of the crankshaft. The positioning groove one (4) is arranged opposite to the positioning groove two (11). The base (1) is provided with a support base (12) for supporting the crankshaft.

2. A crankshaft tooling fixture according to claim 1, wherein: The first mounting base (2) has a mounting groove (13) and the first clamping block (3) is threaded into the mounting groove (13); the second mounting base (8) has a mounting groove (14) and the second clamping block (10) is threaded into the mounting groove (14).

3. A crankshaft tooling fixture according to claim 1, wherein: The support base (12) is provided with a V-shaped groove (15), and the opening of the V-shaped groove (15) faces upward.

4. A crankshaft tooling fixture according to claim 1, wherein: A clamping assembly (16) is provided on the support base (12), and the clamping assembly (16) is used to clamp the crankshaft onto the support base (12).

5. A crankshaft tooling fixture according to claim 4, wherein: The clamping assembly (16) includes a support (161) and a pressure rod (162). The support (161) is slidably disposed on the support base (12), and the pressure rod (162) is threadedly connected to the support (161). The lower end of the pressure rod (162) can abut against the surface of the crankshaft.

6. A crankshaft tooling fixture according to claim 5, wherein: The end of the pressure rod (162) is provided with an anti-wear block (17), which is made of rubber.

7. A crankshaft tooling fixture according to claim 1 wherein: The base (1) is provided with a guide rod (18), and the bottom of the support base (12) is provided with a guide groove (20) for sliding cooperation with the guide rod (18). A spring (19) is provided in the guide groove (20), and the support base (12) cooperates with the guide rod (18) to compress the spring (19).

8. A crankshaft tooling fixture according to claim 5, wherein: The support base (12) has sliding grooves (21) on both sides, and the support (161) has a slider part (22) that slides in cooperation with the sliding grooves (21).

9. A crankshaft tooling fixture according to claim 1, wherein: The first mounting base (2) has a strip hole (23), and a bolt (24) is inserted into the strip hole (23). The bolt (24) is threadedly connected to the base (1).

10. A crankshaft tooling fixture according to claim 1, wherein: The base (1) is provided with a dovetail groove (25) at its bottom, and the dovetail groove (25) is opened along the length direction of the base (1).

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